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Synthesis and properties evaluation of sodium fatty alcohol polyoxyethylene ether sulfonate / Y. M. Zhang in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 1/2010 (01-02/2010)
[article]
Titre : Synthesis and properties evaluation of sodium fatty alcohol polyoxyethylene ether sulfonate Type de document : texte imprimé Auteurs : Y. M. Zhang, Auteur ; J.-P. Niu, Auteur ; Q.-X. Li, Auteur Année de publication : 2010 Article en page(s) : p. 35-39 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Sodium salts fatty alcohol polyoxyethylene ether sulfonate isethionate Temperature tolerance Salt Interfacial tension Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Sodium salts of fatty alcohol polyoxyethylene ether sulfonates with different length of hydrophobic chain (CnE3SO3, n = 14, 16, 18) were synthesized from sodium isethionate, then the structure was verified by IR. The temperature resistance, calcium-tolerant stability and salt tolerance were evaluated by pyrogenetic decomposition, phase separation and middle phase emulsion respectively. In addition the mixture of CnE3SO3 and heavy alkylbenzene sulfonate (HABS) was studied. The results showed that : (1) CnE3SO3 was very stable at 150°C especially in neutral, weak acid and weak alkaline conditions ; (2) CnE3SO3 performed a good salt tolerance and have a rank of C18E3SO3 > C16 E3SO3 > C14E3SO3 ; (3) the calcium-tolerant stability of CnE3SO3 reached 8700 mg/L, 9500 mg/L and 10000 mg/L respectively ; (4) CnE3SO3 was very good for improving the salt tolerance of mixture of CnE3SO3 and HABS. C18E3SO3 was the best in mixtures of Daqing crude oil/water containing C18E3SO3 and HABS in a ratio of omega C18E3SO3):omega(HABS) = 3:7 and showed the strongest synergistic effect. The interfacial tension in the system Daqing crude oil/water reached a minimum in the order of 10–3 mN/m and was always below 10–2 mN/m for cNaCl from 0 to 15000 mg/L. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8068
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 1/2010 (01-02/2010) . - p. 35-39[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011905 - Périodique Bibliothèque principale Documentaires Disponible Reverse phase HPLC analysis of commercial surfactants used as melt additives / V. M. Datla in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 3/2010 (24/05/2010)
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Titre : Reverse phase HPLC analysis of commercial surfactants used as melt additives Type de document : texte imprimé Auteurs : V. M. Datla, Auteur ; K. Beck, Auteur ; E. Shim, Auteur ; B. Pourdeyhimi, Auteur Année de publication : 2010 Article en page(s) : p. 143-150 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Additifs liquides' 'Chromatographie liquide haute performance' HPLC 'Surfactants non-ionique' Polyoxyéthylène Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Reverse phase HPLC (High Performance Liquid Chromatography) was used to analyze the length distribution of polyoxyethylene (POE) chains in commercial surfactants that can be used as melt additives for hydrophilic polypropylene surface modification. Ten nonionic surfactants including ethoxylated alcohols, nonyl phenols and amines, PEG esters, and mono glycerides were investigated. HPLC methods described herein are capable of analyzing ethoxylated nonionic surfactants and offer the advantage of separating the components in surfactants according to both the hydrophobe and hydrophile chain length. Moreover, the method is rapid and gradient elution allows for good baseline separation of the several components in the additives. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9464
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 3/2010 (24/05/2010) . - p. 143-150[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012189 - Périodique Bibliothèque principale Documentaires Disponible